I practice real-world IoT attack and defense techniques and build security playbooks to strengthen my resume for internships and entry roles.
Portfolio items focus on hands-on IoT cyber defense: attack techniques, defensive implementations, and the documentation I produced from an externship.
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Hydroficient · Mar 2026 · ✅ Verified by Extern
Build, hack, and defend real IoT infrastructure, then hand your security playbook to an actual company. You’ll launch realistic cyberattacks, from spoofing and replay attacks to unauthorized shutoffs, and implement defenses like TLS and mTLS.
Designed and secured an IoT monitoring environment using MQTT with TLS, mutual TLS (mTLS), HMAC verification, timestamp validation, and sequence tracking. Simulated cyber-attacks including message tampering and replay attacks to validate layered security defenses. Built a real-time security dashboard that monitored device activity, detected blocked attacks, and displayed security events. Implemented machine learning–based anomaly detection using Isolation Forest to identify unusual device behavior alongside traditional security controls.
I practice real-world IoT attack and defense techniques and build security playbooks to strengthen my resume for internships and entry roles.
I am Jime Aguiar Augusto, currently in college with limited formal work experience and focused on quickly strengthening my resume. I have completed an IoT cyber defense externship where I practiced attacking and defending real IoT infrastructure and documented security measures like TLS and mTLS.
Externships
Hydroficient IoT Cyber Defense Externship
Completed · Mar 2026
Experience
Robotaxi Fleet Support Specialist
Tesla, Inc. · 01/2026 - Present
Delivery Driver
Prolific Logistics · 08/2023 – 09/2025
Fulfillment Associate
Amazon LLC · 12/2020 – 12/2022
Education
Lone Star Community College – Cypress, Texas
Cypress Lakes High School – Katy, Texas
Skills
✅ Verified by Extern
Build, hack, and defend real IoT infrastructure, then hand your security playbook to an actual company. You’ll launch realistic cyberattacks, from spoofing and replay attacks to unauthorized shutoffs, and implement defenses like TLS and mTLS.
The work documented the Grand Marina Hotel's hydrologic IoT deployment, produced a STRIDE threat model, built and secured an MQTT pipeline, and produced a real-time dashboard and capstone slide deck summarizing defenses and tests. The work was awarded Top Performer by Hydroficient.
I produced a complete security package for a hydrologic IoT system: a STRIDE threat model, sensor data generator and logs, an MQTT design, TLS/mTLS implementations with test evidence, replay-attack mitigations with test results, an Isolation Forest anomaly model, and a live dashboard and capstone deck.
Designed and secured an IoT monitoring environment using MQTT with TLS, mutual TLS (mTLS), HMAC verification, timestamp validation, and sequence tracking. Simulated cyber-attacks including message tampering and replay attacks to validate layered security defenses. Built a real-time security dashboard that monitored device activity, detected blocked attacks, and displayed security events. Implemented machine learning–based anomaly detection using Isolation Forest to identify unusual device behavior alongside traditional security controls.
